GAS TURBINE ENGINES AND THEIR APPLICATIONS III PROGRAMME COURSE DESCRIPTION

Code	Name of the Course Unit	Semester	In-Class Hours (T+P)	Credit	ECTS Credit
GMY443	GAS TURBINE ENGINES AND THEIR APPLICATIONS III	7	8	6	7

GENERAL INFORMATION
Language of Instruction :	Turkish
Level of the Course Unit :	BACHELOR'S DEGREE, TYY: + 6.Level, EQF-LLL: 6.Level, QF-EHEA: First Cycle
Type of the Course :	Compulsory
Mode of Delivery of the Course Unit	-
Coordinator of the Course Unit	Assist.Prof. SİNEM GÜRKAN
Instructor(s) of the Course Unit
Course Prerequisite	No

OBJECTIVES AND CONTENTS
Objectives of the Course Unit:	This course aims to provide comprehensive knowledge of the components, systems, and applications of gas turbine engines. Students will gain an understanding of the engine's air, ignition, indicator, and power augmentation systems, as well as the structure and operating principles of turboshaft and turbo-prop engines, thereby grasping the maintenance and repair processes.
Contents of the Course Unit:	This course is designed to enhance the technical knowledge of licensed aircraft maintenance technicians on advanced systems and sub-components of gas turbine engines. The course content is structured in accordance with EASA Part-66 Module 15, and complies with the SHT-66 Instruction issued by the Directorate General of Civil Aviation (SHGM) as well as EASA Part-145 maintenance standards. In the Gas Turbines III course, advanced-level technical instruction is provided on air systems, starting and ignition systems, engine indication systems, power augmentation systems, and the structural and operational characteristics of turboprop and turboshaft engines. Within the air systems section, the operating principles of engine internal cooling, sealing systems, external air services, and anti-icing systems are explained in detail. The starting and ignition systems section introduces the components responsible for engine start-up and ignition, with particular emphasis on maintenance considerations and critical inspection points. The engine indication systems section examines systems that display key engine parameters, including exhaust gas temperature (EGT), inter-turbine temperature (ITT), engine pressure ratio (EPR), oil and fuel pressures, engine speeds (N1/N2), vibration, and torque. In the power augmentation systems section, the effects of water injection, water-methanol injection, and afterburner systems on engine performance are discussed. The turboprop engines section covers engine types, reduction gearbox systems, engine–propeller control mechanisms, and overspeed protection systems. In the turboshaft engines section, power transmission, gearbox assemblies, clutches, and control systems are introduced and analyzed from a maintenance-oriented perspective.

KEY LEARNING OUTCOMES OF THE COURSE UNIT (On successful completion of this course unit, students/learners will or will be able to)
The operation of engine air distribution and anti-icing control systems, including internal cooling, sealing, and external air servicing, will be understood.
The student will interpret the functioning of engine instrumentation systems, including monitoring parameters such as exhaust gas temperature, engine thrust, oil pressure, fuel flow, engine speed, vibration, torque, and power.
The student will understand the structure and operation of turbo-prop engines, including the distinction between gas-coupled and gear-coupled turbines, reduction gears, integrated engine and propeller control systems, and over-speed protection devices.
The student will comprehend the adjustments, drive systems, reduction gear assemblies, couplings, and control systems of turbo-shaft engines.

WEEKLY COURSE CONTENTS AND STUDY MATERIALS FOR PRELIMINARY & FURTHER STUDY
Week	Preparatory	Topics(Subjects)	Method
1	-	15.12 Air Systems This section covers the operation of engine air distribution and anti-icing control systems, including internal cooling, sealing, and external air services.	-
2	-	15.12 Air Systems This section covers the operation of engine air distribution and anti-icing control systems, including internal cooling, sealing, and external air services.	-
3	-	15.13 Starting/Starting and Ignition Systems This topic addresses the operation of the engine starting system and its components, as well as the ignition systems and their components. Additionally, it discusses the safety requirements related to maintenance.	-
4	-	15.13 Starting/Starting and Ignition Systems This topic addresses the operation of the engine starting system and its components, as well as the ignition systems and their components. Additionally, it discusses the safety requirements related to maintenance.	-
5	-	15.14 Engine Indicator Systems This section focuses on engine monitoring, including exhaust gas temperature, inter-stage turbine temperature, engine thrust indicators, engine pressure ratio, turbine discharge pressure, or jet (exhaust) pipe pressure systems. It also includes monitoring of oil pressure and temperature, fuel pressure and flow, engine speed, vibration measurements, torque, and power.	-
6	-	15.14 Engine Indicator Systems This section focuses on engine monitoring, including exhaust gas temperature, inter-stage turbine temperature, engine thrust indicators, engine pressure ratio, turbine discharge pressure, or jet (exhaust) pipe pressure systems. It also includes monitoring of oil pressure and temperature, fuel pressure and flow, engine speed, vibration measurements, torque, and power.	-
7	-	15.14 Engine Indicator Systems This section focuses on engine monitoring, including exhaust gas temperature, inter-stage turbine temperature, engine thrust indicators, engine pressure ratio, turbine discharge pressure, or jet (exhaust) pipe pressure systems. It also includes monitoring of oil pressure and temperature, fuel pressure and flow, engine speed, vibration measurements, torque, and power.	-
8	-	15.15 Power Augmentation Systems This section covers the operation and application of power augmentation systems, including water injection, water-methanol injection, and auxiliary burner systems.	-
9	-	15.15 Power Augmentation Systems This section covers the operation and application of power augmentation systems, including water injection, water-methanol injection, and auxiliary burner systems.	-
10	-	MID-TERM EXAM	-
11	-	15.16 Turbo-prop Engines This topic addresses gas-coupled (free turbine) and gear-coupled turbines, reduction gear systems, integrated engine and propeller controls, and overspeed protection devices.	-
12	-	15.16 Turbo-prop Engines This topic addresses gas-coupled (free turbine) and gear-coupled turbines, reduction gear systems, integrated engine and propeller controls, and overspeed protection devices.	-
13	-	15.16 Turbo-prop Engines This topic addresses gas-coupled (free turbine) and gear-coupled turbines, reduction gear systems, integrated engine and propeller controls, and overspeed protection devices.	-
14	-	15.17 Turbo-shaft Engines This section covers the adjustments, drive systems, reduction gear arrangements, couplings, and control systems specific to turbo-shaft engines.	-
15	-	15.17 Turbo-shaft Engines This section covers the adjustments, drive systems, reduction gear arrangements, couplings, and control systems specific to turbo-shaft engines.	-
16	-	FINAL EXAM	-
17	-	FINAL EXAM	-

SOURCE MATERIALS & RECOMMENDED READING
EASA PART 66 MODULE 15 GAS TURBINE ENGINES

ASSESSMENT
Assessment & Grading of In-Term Activities	Number of Activities	Degree of Contribution (%)	Description	Examination Method

Level of Contribution
0	1	2	3	4	5

KNOWLEDGE
Theoretical
	Programme Learning Outcomes	Level of Contribution
		0	1	2	3	4	5
1	Define the basic concepts of aeronautical standards and rules. (Bloom 1)				3

KNOWLEDGE
Factual
	Programme Learning Outcomes	Level of Contribution
		0	1	2	3	4	5
1	Organize teamwork during the collection, interpretation, announcement and application of data related to the field. (Bloom 6)					4

SKILLS
Cognitive
	Programme Learning Outcomes	Level of Contribution
		0	1	2	3	4	5
1	Perform theoretical and practical knowledge related to his/her field in business life using analytical methods and modeling techniques. (Bloom 4)						5
2	Use maintenance manuals and other sources of information in business life to obtain information about the field. (Bloom3)				3
3	Determine the actualities of all technical and administrative documents related with the field. (Bloom 1)					4
4	Perform theoretical and practical knowledge related to his/her field in business life using analytical methods and modeling techniques. (Bloom 4)			2

SKILLS
Practical
	Programme Learning Outcomes	Level of Contribution
		0	1	2	3	4	5
1	Use computer software, information and communication technologies at the level required by the field. (Bloom 3)		1
2	Interpret the sketches, scheme, graphics that describe the subject. (Bloom 2)				3

OCCUPATIONAL
Autonomy & Responsibility
	Programme Learning Outcomes	Level of Contribution
		0	1	2	3	4	5
1	Develop solutions for problems faced during application. (Bloom 6)					4

OCCUPATIONAL
Learning to Learn
	Programme Learning Outcomes	Level of Contribution
		0	1	2	3	4	5
1	Determine the learning requirements related with his/her field. (Bloom 3)				3
2	Use the lifelong learning principles in occupational development. (Bloom 3)				3

OCCUPATIONAL
Communication & Social
	Programme Learning Outcomes	Level of Contribution
		0	1	2	3	4	5
1	Apply the technical drawing knowledge effectively in business life. (Bloom 3)					4
2	By informing the relevant persons and institutions about the related field; state his / her thoughts and suggestions for solutions in the field.(Bloom 1)					4
3	Debate his/her ideas and solution suggestions with experts by supporting them with quantitative and qualitative data. (Bloom 2)				3
4	Participate in training related to the field at international level. (Bloom 3)						5
5	Organize activities for the professional development of employees under his/her responsibility. (Bloom 6).			2

OCCUPATIONAL
Occupational and/or Vocational
	Programme Learning Outcomes	Level of Contribution
		0	1	2	3	4	5
1	Use the knowledge and skills obtained during undergraduate education in work life. (Bloom 3)				3
2	Solve the problems encountered in his/her field. (Bloom 3)					4
3	Apply the necessary culture of behavior in the areas of quality management and processes and environmental protection and occupational safety (Bloom 3)			2
4	Locate the awareness of safety factor to himself and to the team. (Bloom 1)						5

WORKLOAD & ECTS CREDITS OF THE COURSE UNIT
Workload for Learning & Teaching Activities
Type of the Learning Activites	Learning Activities (# of week)	Duration (hours, h)	Workload (h)
Lecture & In-Class Activities	14	8	112
Preliminary & Further Study	14	4	56
Land Surveying	0	0	0
Group Work	0	0	0
Laboratory	0	0	0
Reading	0	0	0
Assignment (Homework)	0	0	0
Project Work	0	0	0
Seminar	0	0	0
Internship	0	0	0
Technical Visit	0	0	0
Web Based Learning	0	0	0
Implementation/Application/Practice	0	0	0
Practice at a workplace	0	0	0
Occupational Activity	0	0	0
Social Activity	0	0	0
Thesis Work	0	0	0
Field Study	0	0	0
Report Writing	0	0	0
Final Exam	1	1	1
Preparation for the Final Exam	1	8	8
Mid-Term Exam	1	1	1
Preparation for the Mid-Term Exam	0	0	0
Short Exam	0	0	0
Preparation for the Short Exam	0	0	0
TOTAL	31	0	178